How to turn off headphones on Xiaomi 7: step-by-step instructions for all types of connection

The Xiaomi 7 (aka Mi 7 or Redmi Note 7 depending on the modification) sometimes persists in streaming audio through the headphones even when they have already been physically disabled, a problem familiar to many owners of MIUI-based devices — the system can “hang” in headphone mode due to software failures, a contaminated 3.5 mm connector or Bluetooth stack errors. Unlike new models, where the problem is often solved automatically, the Xiaomi 7 requires manual intervention.

In this article, we will discuss 5 proven ways to disable headphones, from basic (reboot, clean the connector) to advanced (engineering menu, reset audio settings). Particular attention will be paid to the hidden bug MIUI 10-12, which does not recognize the disabling of the 3.5 mm headphones after updating the firmware. All instructions are tested on current versions of the software and adapted to the specifics of the Xiaomi 7 iron (Snapdragon 660/636, Qualcomm WCD9340 audio codec).

Basic methods: reboot and physical verification

Start with the simplest of steps — 60 percent of the time, the problem is solved without deep tuning. The first thing you need to do is force the smartphone to restart. Press the power button for 10 to 15 seconds until the screen goes out and the Mi logo appears. This method will work if the failure is caused by a temporary conflict of sound drivers.

If the reboot didn’t help, check the physical condition of the connector:

• 🔍 Check the 3.5mm connector for contaminants (dust, pile, oxidation). Use a flashlight - even small particles can block contacts.
• 🧹 Clean the connector with a wooden toothpick (not metal!) or compressed air. Do not use liquids!
• 🎧 Connect and disable the headphones 3-5 times – sometimes it “resets” the sensor connection.
• 🔌 Check the headphones on another device. If they don't work properly, the problem may be in them, not the smartphone.

⚠️ Warning: Do not use metal objects to clean the connector, this can close contacts and disable the audio track. If you notice corrosion or damaged contacts, contact the service center.

For owners of Xiaomi 7 with Bluetooth headphones:

• 📱 Open the notification panel and tap the Bluetooth icon to turn off the module.
• 🔄 Go to Settings. → Connected devices → Bluetooth and “forget” problem headphones (click on the gear next to the name) → Remove this device).
• 🔋 Restart the headphones (usually by pressing the power button for 10 seconds).

2. Software methods: sound settings and engineering menu

If the physical methods didn't work, the problem lies in the software part. On Xiaomi 7 there are several hidden tools for resetting audio settings.

Method 1: Resetting the sound settings

1. Go to Settings → System → Additional → Resetting settings.
2. Select Reset the sound settings (not to be confused with a full reset!).
3. Confirm the action. The smartphone will reboot, and the sound should return to the speakers.

Method 2: Engineering menu (for advanced users)

This method requires caution, but often solves the problem at the driver level:

1. Open the Phone app and enter the combination: ##36446337###
2. In the engineering menu, select Hardware Testing → Audio.
3. Scroll through to the Headset Mode section and make sure that the Normal status (not Headset plugged in) is available.
4. Press Headset Switch and select Disable.
5. Go back to the main menu and restart the phone.

💡

If the user settings of the equalizer are lost after resetting the sound, restore them through the Mi Sound Assistant app (available from the Mi App Store).

3. Resetting the cache and data of the “Phone” application

Few people know, but the processing of the connection of the 3.5 mm headphones on Xiaomi is partially responsible for the system application Phone (not to be confused with the application for calls!).

Instructions:

1. Go to Settings → Applications → Application Management.
2. In the upper right corner, click on three points → Show system.
3. Find the Phone app (the pipe icon, the name may be com.android.phone).
4. Click Warehouse → Clear the cache and Clear the data.
5. Reboot your smartphone.

This method is particularly effective after MIUI updates, when the system misidentifies the connector status, and if the sound returned after the reset, but after a while the problem recurs, the cause may be a damaged firmware of the communication module, in which case only the firmware will help.

Read the consequences (call settings will reset)|Make sure you remember. PIN-code SIM-map|Make a backup copy of your contacts|Close all active calls-->

4. Update firmware and roll back sound drivers

On Xiaomi 7, the problem with “sticking” headphones is often associated with bugs in specific versions of MIUI. For example, in the firmware MIUI 11.0.2.0 and MIUI 12.0.1.0 for the Redmi Note 7 was a massive bug with audio drivers, which was fixed only in MIUI 12.0.3.0.

How to update firmware:

• 📱 Go to Settings. → The phone. → Updating the system.
• 🔍 Click on three dots in the upper right corner → Select the update package (if you downloaded the firmware manually).
• 🔄 If no updates are available, check for betas in the Mi Community.

If the problem appears after the update, you can try rolling back the sound drivers:

1. Download the archive with drivers for your model from the 4PDA forum (section Xiaomi Redmi Note 7).
2. Unpack the archive and find the file. audio_policy.conf.
3. Use Root Explorer or ADB, to replace the file along the way /system/vendor/etc/audio_policy.conf.
4. Reboot the phone.

⚠️ Note: You can't replace system files without root rights. ADB Or Magisk, better get help on profile forums. Incorrect file replacement can lead to bootloop (cyclical reboot).

5. Hardware malfunctions: when without service can not do

If none of the software methods worked, the problem is probably hardware. Xiaomi 7 most often fails:

• 🎛️ Headphone connection sensor in 3.5 mm connector (mechanical damage or oxidation).
• 🔌 Qualcomm audio chip WCD9340 — responsible for processing sound, can overheat or fall off when falling.

Signs of hardware malfunction:

• The smartphone does not detect any headphones (wired and Bluetooth).

Cost of repairs in service centers:

Before visiting the service, check whether your device is not guaranteed (even if the smartphone was purchased a long time ago, some malfunctions may be covered by an extended warranty from Xiaomi).

1. Enter the IMEI of your Xiaomi 7 (you can find it in Settings → About Phone → General information).

💡

If the smartphone is warranty, DO NOT open it yourself and DO NOT try soldering contacts - this will cancel the warranty obligations.

Alternative solutions: workarounds

If you can not turn off the headphones, but you urgently need sound through speakers, use bypass methods:

For wired headphones:

• 🎵 Connect a Bluetooth speaker or smartwatch (such as a Mi Band with a speaker) – the sound will automatically switch to a new device.

For Bluetooth headphones:

• 📲 Connect your smartphone to a smart TV or laptop Miracast/Wi-Fi Direct and broadcast the sound through them.
• 🎮 Use a game controller with audio output (e.g., Xiaomi Game Controller).
• 🔧 Install SoundAbout from Google Play – it allows you to forcibly redirect the sound to the speakers.

For owners of Xiaomi 7 with root rights, there is a radical way:

su


setprop persist.audio.fluence.speaker true




reboot

This command is forceful activation of the speakers, ignoring the condition of the connector. Use it at your own risk!

FAQ: Frequent questions about turning off headphones on Xiaomi 7